This means that the rare case in which two classes are tightly-coupled across package boundaries has to be split across files, leading the unwary to not recognize the tight coupling between the two.
这意味着两个跨包进行紧密耦合的类一定要在跨文件时分离，这会致使两者间的紧密耦合很容易被忽略。
2
Each use case was extremely cohesive, but consequently the use cases had a high degree of coupling.
每个用例极为内聚，但也因此造成用例间的高度耦合。
3
In this case there is always a magnetic coupling between the rotor and the stator.